Stone-sawing machine.



Patented Aug. 29, |899.

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nonms Pneus co., woau'rn Patented Aug. 29, |899.

v No. 632,000.

' F. W. SHETTLEWORTH.

STONE s'AwmG MACHINE.

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Patented Aug. 29, |399.

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Patented Aug. 29, |899.

F. W. SHETTVLEWRTH. STONE SAWING MACHINE.

(Application filed Apr.

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Witnesses.-

UNITED STATES-PATENT OFFICE.

FREDERICK W. SHETTLEVORTH, OF PORTLAND, CONNECTICUF'ASSIGNOR,

BY DIRECT AND MESNE ASSIGNMENTS, TO THE PATENT DIAMOND GANG SAW COMPANY,OF SAME PLACE.

STONE-sAwlNe MACHINE.

SPECIFICATION forming part Of Letters Patent N0. 632,000, dated August29, 1899. Application filed April 8, 1899. Serial No. 712,229. (Nomodel.)

To all whom, it may concern:

Be it known that I, FREDERICKVIV. SHET- TLEWORTH, a citizen of theUnited States, residing in Portland, in' the county of Middlesex andState of Connecticut, have invented certain new and useful Improvementsin Stone-Sawing Machines, of which the following is a specification.

This invention relates to stone-sawing maio chines, the object being to,provide an improved apparatus of this character simple in constructionand durable in use and particularly effective owing to the improvedorganization and assemblage of the parts of such structure for thepurpose for which it is designed.

In the drawings, accompanying and forming Apart of this specification,Figure 1 is a plan View of the main parts of the machine. Fig. 2 is across-sectional view taken in line zo w w, Fig. 1. Fig. 3 is a faceview, on Van enlarged scale, of the means disposed at each end of thesaw-frame for supporting the same. Fig. et is a side View of the partsshown in Fig. 3, looking from the right to the left. Fig. 5

is a perspective View of one end o f one of the saw-frame side bars anda part of the I-beam which supports the saws, thev dot-ted linesillustrating the recess into-which the I-beam istted when the parts areassembled. Fig. 3o 6 is Fig. 7 is a cross-sectional View taken in line yy, Fig. 3, and looking from the right to the left. Fig. 8 is across-sectional view taken in line .e 5, Fig. 3, and looking downward.Fig. 9 is a detail view of one end ot' a saw, showing its mode ofassemblage with the I-beam. f Fig. 11 is a side view of the clampconnecting one of the trans- Fig. 10 is a top View thereof.

4o verse frame-bars with the I-beam. Fig. 12

isa top view thereof, and Fig. 13 is a viewv of a form of track-rollsdierent from those` shown in Fig. 3 and the other figures hereinbeforedescribed.

Similar characters of reference designate like parts in all the figuresof the drawings.

The saw-frame may bel supported by any suitable framework adapted forthe purpose and usually comprises four upright posts or 5o beams, oneadjacent to each corner of the frame. In the present instance thisframea cross-sectional view taken in line as, Fig. 3, and looking fromthe right to the left.

work is shown comprising four upright beams or posts 2, secu redtogether at their lower and upper ends by cross-beams 3 and 4, respecptively. 5 5 The saw-frame (designated in a general way by A) in 'thepresent construction,which may be its preferred construction, ifdesired, comprises two side bars 5, the major portions of which arepreferably shown as tubular. Each 6o of these side bars is provided withsquared ends 6, and in the present instance these squared ends areformed separate therefrom and are providedrwith tubular portions 6' forinsertion into the ends of the tubular side bars, whereby a irm andrigid construction is provided. Theside bars are connected at their endsby transverse bars 7, and for this purpose the ends of the side bars areshown provided with concaved seats 9, into which 7o the transverse barsare fitted, they preferably being tubular. These transverse bars arebolted to the side bars in some suitable way. In the construction shownthey are secured in position by tie-bolts 10, extending entirely throughsaid side bars from end to end thereof, being secured theretointermediate their ends by suitable bolts 12. Adjacent to each end ofthis saw-frame is disposed means for supporting the saw-blades, andwhich means 8o in the construction shown also constitutes a means forreinforcing the frame. In the present instance this means comprises apair of I-beams 13, the ends of which are preferably fitted intorecesses 14, (see Fig. 5,) formed for this purpose, this constructionbeing readily permitted owing to the squared formation of the side-barends, and are secured to said side bars by bolted angle-plates 15. Bythis assemblage a saw-frame rigid and Vfirmin con- 9o struction isfurnished. The saw-blades 16, of which there 'may be any desired number,

(shown herein as a gang thereof,) are secured to the I-beams bybifurcated bolts 17, the bifurcated ends 17 of which receive the saw- 95blades, one extending above and the other below the I-bearn and beingunited at the outer side thereof by plates and nuts. Each of thesaw-blades is preferably constructed to carry t two sets of teeth ofdifferent efficiencies, one roo set at each edge,'and for this purposeone edge (herein shown as the lower edge of each blade) is formed forthe reception of steel teeth 18, Fig. 2, and which teeth may be of theformation and assembled in the manner shown and described in my PatentNo. 618,524, if desired. The opposite edge is formed to receive diamondteeth 19, whereby in operation the same saw-blades can be used witheither the diamond or the steel teeth.

The saw-frame-supporting means in the form thereof herein shown anddescribed comprises a plurality of sets of rolls or roll-surfaces.(Shown herein as four sets, one set located adjacent to each corner ofthe sawframe.) For supporting these rolls suitable means is provided,which in the form shown comprises an adjustable support or travelingblock 20, carried by each of the upright beams 2. Each of these blocks20 is formed at its rear lside to slide upon a track or way 21, securedto the beam 2, Fig. 8, and for this purpose it is provided with a recess22, having at one side thereof an inclined wall 23, its opposite side 24being straight for the reception of the track 25, which is provided witha pair of inclined sides 26, one in engagement with the inclined wall 23of the block and the other in engagement with the inclined wall 27 of astrip 28, having its opposite side 29 straight, whereby it is alsoadapted to fit into said recesses 22, being secured therein by asuitable fastening device, such as bolts 30. By means of thisconstruction the formation and assemblage of the block and its way ispermitted.

For adjusting the block it is shown provided with an internally-threadedsleeve 3l, through which extends a screw 32, secured at its upper andlower ends to the beam2. Each of these screws 32 may be suitablyconnected by gearing, (not shown,) whereby all may be operatedsimultaneously to raise or lower the blocks, andthe saw-frame supportedthereby. Each of these traveling blocks 2O is provided with bearings 33for the reception of roll shafts or journals, one of each set of whichis so supported that the roll or rolls carried thereby can be adjustedtoward and from the other shaft. In the construction shown each of theseblocks is shown provided at its upper end with a pair o fjournal-bearings having removable caps 34, while the lower end of saidblock is provided with a pair of split journalbearings.

The direct means for supporting the sawframe and for permitting thereciprocation thereof in a horizontal plane comprises a plurality ofsets of rolls, (shown herein as four sets and designated in a generalway by 13,) each set comprising a plurality of rolls or ro1lsurfaces soorganized that the saw frame while supported for recprocatory movementin a horizontal plane will be prevented from lateral or sidewise playand also so organized that the greatest amount of support will be at theunder side of said frame, and in the present construction each set ofrolls comprises a three-point bearing.

At each end of the saw-frame is a transversely-extending shaft 35,mounted in the upper bearings 33 of the traveling blocks 20, on which aroll 40 is journ'aled adjacent to each end thereof, each end forming oneof the rolls of its respective set.

Mounted in the lower bearing 33 of each block is a shaft 36,eccentrically supported within said bearings. (See dotted lines, Figs. 4and 6.) Carried by this shaft isa two-point bearing 37, which may beformed as two separate and independent rolls or as one roll having twoindependent track-surfaces 41 and 42. By the adjustment of thiseccentricallymounted shaft, which is provided with holes for thispurpose, it will be seen that the bearing 37 will be adjusted toward orfrom its coacting bearing 40. j By this means it will be seen that saidbearing 37 is adjustable toward and from the bearing 40, owing to theeccentrically-mounted shaft.

The track-surfaces of the rolls shown in Figs. 1, 34, and 6 are V-shapedin cross-section, whereby the rolls have inclined peripheral flanges toprevent lateral movement of the saw-frame. For engagement with theserolls each squared end of the saw-frame side bars is provided withaseries of tracks (shown herein one, as 43, at the upper side, and two,as 44 and 45, at the under side, thereof) carried by suitable brackets46, these tracks being so disposed that the edges thereof will it intothe grooves of the rolls.

Instead of for-min g the rolls as j ust described and in order tomaterially decrease the frietion which is present in such aconstruction, each upper roll may` be formed as a flat roll 47, Fig. 13,coperatin g with a flat-faced track 43', carried by the frame side bar,while the lower twopoint bearing 37 may comprise one roll having a pairof right-angle anges 48 or a pair of rolls having a right-angle iiangeat its outer side, said bearing coperatiug with a pair of fiat-facedtracks 44 and 45', carried at the under side of said side bar. In thisconstruction it will be seen that the periph eries of the rolls (threein number) only are in frictional engagement with the tracks, whereas inthe other there are six frictionsurfaces in each set of rolls.Furthermore, it will be seen that the right-angle Iianges of the lowerrolls prevent lateral or sidewise movement of the saw-frame during itsreciprocatory operation.

It will be understood, of course, that the tracks of each set are ofsufcient length to permit the necessary reciprocatory movement.

Any suitable means may be used to reciprocate the frame on the rolls,such means having a power-transmittin g connector 50, which in thepresent instance is shown secured to one of the transverse bars 7 of thesaw-frame. To prevent the buckling of this bar, it is shown clamped toone of the I-beams, and for this purpose a pair of split clamps 5l areshown secured to said transverse bar '7,iian ged bolts 52 extendingtherethrough and over- IOO IIO

eaaooo p a lapping the I-beam at its upper and lower sides. It will thusbe seen that the means which clamp the I-bcam-namely, the boltsalsoconstitute means for clamping the split body of the clamp itself to thetransverse frame-bar, whereby a portion of the strain imparted to thebar will be carried by the I- beam to which it is connected.

The operation of this improved machine will be readily understoodwithout a further description.

I-Iaving described my invention, I claiml. In astone-sawingmachine, thecombination of asaw-frame carrying a saw, and means for supporting saidframe for reciprocatory movement and comprising a plurality of sets ofthree-point enacting roll-bearing surfaces each set organized with partsthereof at opposite sides of said frame.

2. In a stone-sawing machine, the combination of a saw-frame, and meansfor supporting said frame for reciprocatory movement in a horizontalplane and comprising a plurality of sets of three-point bearings eachset located to have its greatest bearing-surface at the under side ofsaid frame.

3. In a stone-sawing machine, the combination of a saw-framecarryingasaw, and means for supporting said frame for reciprocatorymovement in a horizontal plane and comprising a plurality of sets oftriangularly-disposed three-point bearings, each set located to have onebearing at one side, and two in parallelism at the opposite side, ofsaid frame.

4. In a stone-sawing machine, the combination of a saw-frame, and meansfor supporting said frame forreciprocatorymovement in a horizontal planeand comprising a plurality1 of sets of rolls, each set comprehendingthree rolls located one above and two in parallelism below said frameand directly under said single roll, and one or more of said rollshaving anges.

5. In a stone-sawing machine, the combinaltion of a framework, asaw-frame, and means for supporting said saw-frame for reciprocatorymovementin a horizontal plane and comprising four sets of bearingssecured to said framework, and comprising rolls located one set adjacentto each cornerol;` said saw-frame, cach set comprehending three rollsdisposed one above and two in parallelism below said saw-frame anddirectly under said single roll, and one or more of said rolls havinganges.

G. In a stone-sawing machine, the combination of a saw-frame, and meansfor supporting said frame for reciprocatory movement and comprising aplurality of setsr of rolls each set embodying a pair of roll-supportingsurfaces disposed in juxtaposition side by side.

7. In a stone-sawing machine,the combination of asaw-frame havingaplurality of sets of independent tracks secured thereto, cach setcomprising three tracks disposed one at one side of said frame and twoin parallelism at the opposite side of said frame, and means forsupporting said frame for reciprocatory movement in a horizontal planeand comprising a plurality of rolls in engagement with said tracks.

8. In a stone-sawin g machine, the combination of a saw-frame havingfour sets of independent tracks secured thereto, each set comprisingthree tracks disposed one at one side of said frame and two inparallelism at the opposite side thereof, and means for supporting saidframe for reciprocatory movement in a horizontal plane and comprisingfour sets of rolls, one set for each set of said tracks, each setcomprehending three rolls one in engagement with each of said tracks,and one or more of said rolls having fianges.

9. In a stone-sawing machine, the combination of a saw-framecarryingasaw,and means for 'supporting said saw-frame for reciprocatorymovement and comprising a plurality of sets of three-point coactingbearings comprising rolls, each set located to have a greaterbearing-surface at one side of the frame than at the other side thereof,and one or more of said rolls having right-angled flanges having smoothperipheries.

10. In a stone-sawing machine, the combination, with framework, of asaw-frame; a plurality of tracks secured to said saw-frame; and meansfor supporting said saw-frame for reciprocatory movement and comprisinga plurality of sets of bearings comprehending rolls supported on saidframework and in engagement with said tracks, each set of said rollsincluding one or more roll-surfaces provided with one or moreright-angled flanges having smooth peripheries.

l1. In a stone-sawing machine, the combination of a saw-frame, and meansfor supporting said frame for reciprocatory movement in a horizontalplane and comprising a plurality of sets of three-point bearings, eachset comprising three rolls comprehending a dat-faced roll at the upperside of said frame and a pair of right-angled anged rolls in parallelismbelow said frame and directly under said upper roll.

l2. In a stone-sawing machine, the combination of a saw-frame having aplurality of sets of flat-faced tracks secured thereto, each setcomprising a series of three tracks located one above and two inparallelism below said frame, and means for supporting said frame forreciprocatory movement in a horizontal plane and comprehending aplurality IOO IIO

of sets of rolls in engagement with said tracks,

each set comprising a flat-faced roll at the upper side of said frameand a pair of rightangled flanged rolls at the underside thereof.

13. In a stone-sawing machine, the combination of a saw-frame comprisinga pair of side bars, each of said bars having a pair of angularly-formedends inserted therein provided with a beam-receiving recess in one ofits faces; a beam projecting into said recesses and clamped to saidangularly-formed ends, tracks mounted on said angularlyformed ends; andmeans for supporting said saw-frame for reciprocatory movement andcomprising a plurality of track-rolls engaging said tracks.

14. In a stone sawing machine, a sawframe comprising a pair of parallelside bars having squared ends; transversely-extending connecting bars;and tie bolts extending through said parallel side bars from end to endthereof and connecting said transverselyextending connecting-bars withsaid parallel bars.

l5. In a stone sawing machine, a sawframe comprising a pair of parallelside bars having squared ends; transversely-extending connecting bars;tie bolts extending through said parallel side bars from end to endthereof and connecting said transverselyextending connecting-bars withsaid parallel bars; and means for connecting said tie-bolts intermediatetheir ends to said parallel side bars.

16. In a stone sawing machine, a saw frame comprising a pair of parallelside bars having angularly-formed ends, each of said ends having anI-shaped recess in one of its faces; transverse connecting-bars securedto said side bars; saw-supporting means comprising a pair of I-beamssecured to said angular ends and projecting into saidI-shaped recesses,one of said beams being located adjacent to each end of said frame; anda saw supported thereby.

17. In a stone-sawin g machine, a saw-frame comprising a pair ofparallel tubular side bars having squared ends inserted therein;transversely-extending connecting-bars; tie-bolts extending through saidparallel side bars and connecting the transversely-extendingconnecting-bars and secured to said parallel side bars intermediatetheir ends; saw-supporting means comprising I-beams secured to thesquared ends of said parallel side bars; and saws carried by saidI-beams.

I8. In a stone-sawingmachine, the combination of asaw-frame, and meansfor supporting said frame for reciprocatory movement and comprising aplurality of sets of rolls each set having a part thereof adjustable toand from another part of said set.

19. In a stone-sawing machine, the combination of a saw-frame, and meansforsupporting said frame for reciprocatory movement and comprising aplurality of sets of threepoint bearings, each set comprising a seriesof three roll-surfaces one part thereof having an adjustment toward andfrom another part of the same set.

20. In a stone-sawing machine, the combination of a saw-frame, and meansfor supporting said frame for reciprocatory movement and comprising aplurality of sets of threepoint bearings, each set comprising a seriesof three rolls one above and two in parallelism below said frame and onepart of the set having an adjustment toward and from another partthereoff 2l. In a stone-sawing machine, the combination of asaw-frame,and means for supporting said frame for reciprocatory movement,

said supporting means embodying one or more eccentrica]ly-supportedrolls.

22. In a stone-sawing machine, the 4combination of a saw-frame; lneansfor supporting said frame for reciprocatory movement and comprising aplurality of sets of three-point bearings, each set comprising a seriesof three rolls adjustable toward and from each other; and means foradjusting said frame and rolls in a plane transverse to the vplane ofits reciplocatory movement.

23. In a stone-sawing machine, the combinationof a saw-frame; means forsupporting said frame for reciprocatory movement', said supporting meansembodying one or more eccentrically-supported rolls; and means foradjusting said rolls and saw-frame in a vertical plane.

24. In a stone-sawing machine, the combination of a saw-frame; aplurality of sets of tracks secured thereto; means for supporting saidframe for reciprocatory movement and comprising a plurality of sets ofrolls; and means for adj ustinga partof the rolls of each set toward andfrom another part.

25. In a stone-sawing machine, the combination ofa saw-frame; aplurality of sets of tracks secured thereto, each set having one trackat one side and a pair of parallel tracks at its opposite side; meansfor supporting said frame for reciprocatory movement and comprising aplurality of sets of rolls, one in engagement with each track; means foradjusting the rolls of each set toward and from each other; and meansfor adj usting said rolls and lsaw-frame in a plane transverse to theplane of the saw-frame reciprocatory movement.

26. In a stone-sawing machine, the combination, with a saw-framesupported for reciprocatory movement, of a gang of saws carried thereby;means comprising a plurality of sets of three-point bearings forsupporting said frame, each set having parts thereof located at oppositesides of said saw-frame; and means for reciprocating said frame.

27. In a stone-sawing machine, the combination, with a saw-framesupported for reciprocatory movement, of a 'gang oi saws carriedthereby; means comprising a plurality of sets of three-point coactingroll-surfaces for supporting said frame,each set having parts thereoflocated at opposite sides of said frame; means for reciprocating saidframe; and means for adjusting said frame in a plane transverse to thatof its sawing movement.

28. In a stone-sawing machine, the combination of a saw-frame supportedfor reciprocatory movement, of a gang of saws carried thereby, and meanscomprising a plurality of sets of rolls for supporting said frame,therolls of each set having a part thereof adjustable toward and from eachother.

29. In a stone-sawing machine, the combi- IOO IIO

nation, with a saw-frame supported for reciprocatory movement, of asaw-blade carried thereby and constructed to carry teeth on both edgesthereof, one lset of different efficiencyv from the other set, and meansfor supporting said frame.

30. In a stone-sawing machine, the combination, with a saw-framesupported for reciprocatory movement, 0f a gang of saw-blades carriedthereby, each constructed to carry teeth on both edges thereof, one setof teeth of different formation from the other set, and means comprisinga plurality of sets of rolls for supporting said frame.

3l. In a stone-sawing machine, the combination of a saw-frame embodyinga saw-supporting beam and a transverse connecting-bar extending inparallelism with said beam; means for supporting said frame; apowertransmitting connector secured to said bar; and means forpreventing the buckling of said bar and comprising a split clamp securedto said bar and having flanged bolts overlapping said beam.

32. In a stone-sawing machine, the combination of a gang of sawssupported thereby; means for supporting said frame for reciprocatorymovement in a-horizontal plane and embodying a plurality of sets ofrolls, the rolls of each set having an adjustment toward and from eachother; and means for adjusting said rolls and frame in a Vertical plane.

33. In a stone-sawing machine, the combination of a saw-frame; aplurality of sets of tracks secured to said frame, each set having atrack at the upper and two in parallelism at the under side of saidframe; a gang of saws carried by said frame; means for supportingv saidsaw-frame and comprising a plurality of sets of rolls one in engagementwith each track, the rolls of each set having an adjustment toward andfrom each other.

34. In a stone-sawing machine, the combination of a saw-frame; a set oftracks secured adjacent to each corner of said frame, one at the upperand two in parallelism at the under side thereof; a gang of saws carriedby said frame; four sets of rolls for supporting said frame forreciprocatory movement in a horizontal path, each set comprising a pairof flanged and adjustable rolls supported at the under side of saidframe for engagement with said parallel tracks, and a roll at the upperside of the frame; and means for adjusting said frame in a verticalplane.

35. In a stone-sawing machine, the combination, with frameworkcomprising four uprights each having a way and a screw carried thereon,of a traveling block supported for movement in each way and havingbearings at its upper and lower ends supporting shafts; a roll carriedby each upper shaft; a pair of anged rolls supported side by side oneach lower shaft; a saw-frame reciprocatory in a horizontal pathsupported by said rolls; a series of three tracks secured theretoadjacent to each end thereof, one at the upper and two in parallelism atthe under side of said frame for engagement with said rolls; and a gangof saws carried by said frame.

36. In a stone-sawing machine, the combination, with frameworkcomprising four uprights each having a way and a screw carried thereon,of a traveling block supported for movement in each way and havingbearings at its upper and lower ends supporting shafts; a roll carriedby each upper shaft; a pair of flanged rolls supported side by side oneach lower shaft; a saw-frame reciprocatory in a horizontal pathsupported by said rolls; a series of three tracks secured theretoadjacent to each end thereof, one at the upper and two in parallelism atthe underside of said frame' for engagement with said rolls; and a gangof saws carried by said frame, each of said saws having two sets ofteeth of different efciencies 37. In a stone-sawing machine, thecombination, with framework comprising four uprights each having a wayand a screw carried thereon, of a-t-raveling block supported formovement in each way and having bearings at its upper and lower endssupporting shafts; a roll carried by each upper shaft; a pair of iiangedrolls eccentrically supported side by side on each lower shaft; asaw-frame reciprocatory in a horizontal path supported by said rolls andcomprising a pair of parallel side bars having squared ends, transverseconnecting-bars, tie-bolts extending through said parallel bars andclamping said transverse bars in position, and an I-beam clamped to thesquared ends adjacent to each end of said frame; a series of threetracks secured to said saw-frame adjacent to each end thereof, one atthe upper and two in parallelism at the under side thereof, forengagement with said rolls; and a gang of laterally-adjustable sawscarried by said I-beams.

38. In a stone-sawing machine, the combination of a saw-frame having aplurality of sets of tracks, each set comprising a plurality of tracksone disposed at one side of said frame and a plurality thereof disposedat another side thereof, and means for supporting said saw-frame forreciprocatory movement and comprising a plurality of sets of rolls inIOO IIO

engagement with said tracks, the bearing- FREDERICK W. SIIETTLEWORTH.

lVitnesses:

FRED. J. Donn, C. A. WEED,

